Heat 1 Table spoon of vegetable oil in wok or large sauce pan over high heat.
When hot, add the chopped white scallion, stir to saute still soften.
Add the mixed cold rice into pan. Stir often till quite dry (2 - 3 minutes).
Add all the chopped and diced vegetable, calamari and protein. Stir to mix well.
When the mixture dry a bit, add soy sauce. Keep stirring well why frying, use a spatula to fold, stir, lightly damp the ingredients apart if they stick together.
When rice is done frying (dry, crisp, and doesn't stick) and all other topping is well cooked, adjust season to taste.
Finally add chopped green scallion and ground pepper, fully stir and remove from heat.